Patents by Inventor Vaughn L. Irwin

Vaughn L. Irwin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Latex paper sizing composition
    Publication number: 20040065425
    Abstract: Methods of sizing paper using a latex as a surface sizing agent are described, in which the latex is defined by acid number or particle size. Further described are methods of improving toner adhesion of papers that are surface sized with alkenylsuccinic anhydrides by employing latexes that have a glass transition temperature of from about 25 to about 65. Still further described are low shear methods of dispersing alkenylsuccinic anhydrides in sizing compositions using latexes as dispersing aids.
    Type: Application
    Filed: October 7, 2002
    Publication date: April 8, 2004
    Applicant: Kemira Chemicals, Inc.
    Inventors: Vaughn L. Irwin, Terrence Edward Cotter, Delos E. Boardman